Browse Prior Art Database

Multiple Channel Optical Fiber/Electronic Signal Interface

IP.com Disclosure Number: IPCOM000100246D
Original Publication Date: 1990-Mar-01
Included in the Prior Art Database: 2005-Mar-15
Document File: 3 page(s) / 96K

Publishing Venue

IBM

Related People

Gjone, R: AUTHOR [+4]

Abstract

This interface structure employs two substrates, one for the optical/ electronic transducer functions and one for the electronic logic functions, in a single assembly providing the precision registrations needed for each.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 52% of the total text.

Multiple Channel Optical Fiber/Electronic Signal Interface

       This interface structure employs two substrates, one for
the optical/ electronic transducer functions and one for the
electronic logic functions, in a single assembly providing the
precision registrations needed for each.

      Fig. 1 is an exploded view of the assembly.  A flexible fiber-
optic link 10 with a multichannel optical connector 12 to other
apparatus has a number of fibers which fan out, as shown at 14, into
an optic connector substrate 16. Substrate 16 includes precise
alignment internal grooves in registration with opto-electronic
transducers (as seen diagrammatically at 17, Fig. 2), communicating
with edge connector lands 18 for input and output signals to and from
the several optic fibers 14.

      The connector lands 18 mate with corresponding lands on a face
20 of a connector bar 22 carried by a multilayer ceramic substrate 24
which serves as a wiring device providing an array 26 of logical
signal contact points.

      Fig. 2 is a diagrammatic sectional view showing parts hidden in
Fig. 1.  A logic chip 28, also seen in Fig. 1, has an array of
contact points corresponding to those of array 26, and is received in
a cavity 30 in a heat sink housing 32.  The multilayer substrate 24
carries an array 34 of input-output signal lands which are wired
within the substrate 24 to respective pins in the array 26.  An
elastomeric connector 36 contacts the lands 34 so as to provide
input-output communication to a utilization device, such as a data
processing apparatus 38.

      The precise alignments needed between the optic fibers 14 and
the tran...